
    <h2>Async Tree</h2>
    <div class="demo-info" style="margin-bottom:10px">
        <div class="demo-tip icon-tip">&nbsp;</div>
        <div>Expand node to load its children nodes on demand.</div>
    </div>
    
    <ul id="tt" class="easyui-tree"
            url="example/tree/tree2_getdata.php">
    </ul>
